Solano County Earthquake Hazard

Solano County is at risk from many earthquake scenarios. These include Hayward/Rodgers Creek, Green Valley, West Napa, San Andreas, Hunting Creek-Berryessa, and two Great Valley scenarios. The Concord/Green Valley fault is the only known active fault passing within County borders, in the western portion of the county. However, its close proximity to the Hayward Fault, which has the greatest likelihood of rupturing in the next 30 years of all the faults in the Bay Area, combined with moderate to high susceptibility of liquefaction throughout most of the county due to delta soils, leaves Solano County at risk in the next major earthquake. Landslides may also occur in the western portion of the county. The last major earthquake with an epicenter within Solano County was the Vacaville-Winters earthquake in 1892, estimated to be of magnitude 6.5. It is unknown which fault caused this earthquake.

Solano County Hazard Map

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Use this map to determine the most damaging earthquake scenario for your area, then click on the map to view the shaking scenario map.
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Source: USGS, 2013.

Learn How an Earthquake will Affect Solano County

Housing losses
Transportation losses
Water/wastewater system disruptions

Resources for Local Governments

Hazard mitigation grants for local governments
On Solid Ground – How good land use planning can prepare the Bay Area for a strong disaster recovery, SPUR 2013

Resources for Residents

Local government recovery toolkit
Family Emergency Planning Guide

What Other Hazards Affect Solano County?

Climate Change
Last updated: 07.21.2014